Pregnant dating scan accuracy
Pregnant dating scan accuracy - dating athlete problems
The second scan offered to all pregnant women is called the anomaly scan, or mid-pregnancy scan, and usually takes place between 18 and 21 weeks of pregnancy.
The scan can provide information that may mean you have to make further important decisions.
Some women may be offered more than two scans, depending on their health and their pregnancy.
You can find out more about the dating scan and the anomaly or mid-pregnancy scan.
The sonographer passes a handheld device called a probe over your skin.
It is this probe that sends out ultrasound waves and picks them up when they bounce back.
See What if a screening test shows a possible problem?
for more information on what may happen if a scan or other screening test suggests an abnormality.Most scans show that the baby is developing normally and no problems are found.This is because most babies are healthy and do not have abnormalities.A black and white picture of the baby will appear on the ultrasound screen.During the examination, sonographers need to keep the screen in a position that gives them a good view of the baby – either directly facing them or at an angle.Ultrasound scans use sound waves to build a picture of the baby in the womb.